code: def run(self):
      pass
  
file_path: pytorch-lightning/tests/tests_app/components/multi_node/test_fabric.py
imports: import os
  from copy import deepcopy
  from functools import partial
  from unittest import mock
  import lightning.fabric
  import pytest
  from lightning.app.components.multi_node.fabric import _FabricRunExecutor
  from lightning_utilities.core.imports import module_available
  from lightning_utilities.test.warning import no_warning_call
label_desc: Use image node_id 1 for calling the DummyFabric obj's underlying member method code with example usage: obj.run() without return types